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NANOG Meeting Presentation Abstract

Running MPLS efficiently in ring networks

Meeting:

NANOG65

Date / Time:

2015-10-06 5:00pm - 5:30pm

Room:

Le Grand Salon & Marquette

Presenters:

Speakers:

Ravi Singh, Juniper Networks

Ravi Singh is a principal software engineer in the routing/MPLS team at Juniper Networks. He has implemented various unicast/multicast and MPLS-signaling-protocols functionality. He helped ship the PTX series of Juniper platforms that are getting deployed in the super-core of various tier-1 networks.

Abstract:

MPLS is widely deployed for the key benefits it offers: traffic engineering and fast reroute. MPLS signaling protocols have been built in a very general-purpose manner. Such generality renders them somewhat inefficient in deployment for special network topologies like a ring. MPLS deployments in ring topologies, that are common in access / aggregation networks, end up being more complicated to configure and manage than is strictly necessary. The scarce bandwidth also ends up being used inefficiently.

This talk shall:
- Describe why MPLS ring topologies are special and thus merit tailor-made MPLS extensions
- Describe the mechanics of how to run MPLS more efficiently in a ring network. The efficiency benefits described would cover both the operational (configuration / management) aspect and also the network utilization aspect.
- Illustrate the benefits of the MPLS-for-rings extensions compared to running general-purpose MPLS in a ring.